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import saml2
from saml2 import xmldsig
import saml2.xmlenc as xenc
data1 = """<?xml version='1.0' encoding='UTF-8'?>
<ns0:EncryptedData MimeType="text/xml" xmlns:ns0="http://www.w3.org/2001/04/xmlenc#">
<ns0:CipherData>
<ns0:CipherValue>A23B45C56</ns0:CipherValue>
</ns0:CipherData>
</ns0:EncryptedData>"""
def test_1():
ed = xenc.encrypted_data_from_string(data1)
assert ed
assert ed.mime_type == "text/xml"
assert ed.cipher_data is not None
cd = ed.cipher_data
assert cd.cipher_value is not None
assert cd.cipher_value.text == "A23B45C56"
data2 = """<?xml version='1.0' encoding='UTF-8'?>
<ns0:EncryptedData
Type="http://www.w3.org/2001/04/xmlenc#Element"
xmlns:ns0="http://www.w3.org/2001/04/xmlenc#">
<ns0:EncryptionMethod Algorithm="http://www.w3.org/2001/04/xmlenc#tripledes-cbc" />
<ns1:KeyInfo xmlns:ns1="http://www.w3.org/2000/09/xmldsig#">
<ns1:KeyName>John Smith</ns1:KeyName>
</ns1:KeyInfo>
<ns0:CipherData>
<ns0:CipherValue>DEADBEEF</ns0:CipherValue>
</ns0:CipherData>
</ns0:EncryptedData>"""
# data2 = """<EncryptedData xmlns='http://www.w3.org/2001/04/xmlenc#'
# Type='http://www.w3.org/2001/04/xmlenc#Element'>
# <EncryptionMethod
# Algorithm='http://www.w3.org/2001/04/xmlenc#tripledes-cbc'/>
# <ds:KeyInfo xmlns:ds='http://www.w3.org/2000/09/xmldsig#'>
# <ds:KeyName>John Smith</ds:KeyName>
# </ds:KeyInfo>
# <CipherData><CipherValue>DEADBEEF</CipherValue></CipherData>
# </EncryptedData>"""
def test_2():
ed = xenc.encrypted_data_from_string(data2)
assert ed
print(ed)
assert ed.type == "http://www.w3.org/2001/04/xmlenc#Element"
assert ed.encryption_method is not None
em = ed.encryption_method
assert em.algorithm == "http://www.w3.org/2001/04/xmlenc#tripledes-cbc"
assert ed.key_info is not None
ki = ed.key_info
assert ki.key_name[0].text == "John Smith"
assert ed.cipher_data is not None
cd = ed.cipher_data
assert cd.cipher_value is not None
assert cd.cipher_value.text == "DEADBEEF"
data3 = """<?xml version='1.0' encoding='UTF-8'?>
<ns0:EncryptedData
Id="ED"
xmlns:ns0="http://www.w3.org/2001/04/xmlenc#">
<ns0:EncryptionMethod Algorithm="http://www.w3.org/2001/04/xmlenc#aes128-cbc" />
<ns1:KeyInfo xmlns:ns1="http://www.w3.org/2000/09/xmldsig#">
<ns1:RetrievalMethod URI='#EK'
Type="http://www.w3.org/2001/04/xmlenc#EncryptedKey"/>
<ns1:KeyName>Sally Doe</ns1:KeyName>
</ns1:KeyInfo>
<ns0:CipherData>
<ns0:CipherValue>DEADBEEF</ns0:CipherValue>
</ns0:CipherData>
</ns0:EncryptedData>"""
def test_3():
ed = xenc.encrypted_data_from_string(data3)
assert ed
print(ed)
assert ed.encryption_method != None
em = ed.encryption_method
assert em.algorithm == "http://www.w3.org/2001/04/xmlenc#aes128-cbc"
assert ed.key_info != None
ki = ed.key_info
assert ki.key_name[0].text == "Sally Doe"
assert len(ki.retrieval_method) == 1
rm = ki.retrieval_method[0]
assert rm.uri == "#EK"
assert rm.type == "http://www.w3.org/2001/04/xmlenc#EncryptedKey"
assert ed.cipher_data != None
cd = ed.cipher_data
assert cd.cipher_value != None
assert cd.cipher_value.text == "DEADBEEF"
data4 = """<?xml version='1.0' encoding='UTF-8'?>
<ns0:EncryptedKey
Id="EK"
xmlns:ns0="http://www.w3.org/2001/04/xmlenc#">
<ns0:EncryptionMethod Algorithm="http://www.w3.org/2001/04/xmlenc#rsa-1_5" />
<ns1:KeyInfo xmlns:ns1="http://www.w3.org/2000/09/xmldsig#">
<ns1:KeyName>John Smith</ns1:KeyName>
</ns1:KeyInfo>
<ns0:CipherData>
<ns0:CipherValue>xyzabc</ns0:CipherValue>
</ns0:CipherData>
<ns0:ReferenceList>
<ns0:DataReference URI='#ED'/>
</ns0:ReferenceList>
<ns0:CarriedKeyName>Sally Doe</ns0:CarriedKeyName>
</ns0:EncryptedKey>"""
# data4 = """<EncryptedKey Id='EK' xmlns='http://www.w3.org/2001/04/xmlenc#'>
# <EncryptionMethod
# Algorithm="http://www.w3.org/2001/04/xmlenc#rsa-1_5"/>
# <ds:KeyInfo xmlns:ds='http://www.w3.org/2000/09/xmldsig#'>
# <ds:KeyName>John Smith</ds:KeyName>
# </ds:KeyInfo>
# <CipherData><CipherValue>xyzabc</CipherValue></CipherData>
# <ReferenceList>
# <DataReference URI='#ED'/>
# </ReferenceList>
# <CarriedKeyName>Sally Doe</CarriedKeyName>
# </EncryptedKey>"""
def test_4():
ek = xenc.encrypted_key_from_string(data4)
assert ek
print(ek)
assert ek.encryption_method != None
em = ek.encryption_method
assert em.algorithm == "http://www.w3.org/2001/04/xmlenc#rsa-1_5"
assert ek.key_info != None
ki = ek.key_info
assert ki.key_name[0].text == "John Smith"
assert ek.reference_list != None
rl = ek.reference_list
assert len(rl.data_reference)
dr = rl.data_reference[0]
assert dr.uri == "#ED"
assert ek.cipher_data != None
cd = ek.cipher_data
assert cd.cipher_value != None
assert cd.cipher_value.text == "xyzabc"
data5 = """<CipherReference URI="http://www.example.com/CipherValues.xml"
xmlns="http://www.w3.org/2001/04/xmlenc#">
<Transforms xmlns:ds='http://www.w3.org/2000/09/xmldsig#'>
<ds:Transform
Algorithm="http://www.w3.org/TR/1999/REC-xpath-19991116">
<ds:XPath xmlns:rep="http://www.example.org/repository">
self::text()[parent::rep:CipherValue[@Id="example1"]]
</ds:XPath>
</ds:Transform>
<ds:Transform Algorithm="http://www.w3.org/2000/09/xmldsig#base64"/>
</Transforms>
</CipherReference>"""
def test_5():
cr = xenc.cipher_reference_from_string(data5)
assert cr
print(cr)
print(cr.keyswv())
trs = cr.transforms
assert len(trs.transform) == 2
tr = trs.transform[0]
assert tr.algorithm in ["http://www.w3.org/TR/1999/REC-xpath-19991116", "http://www.w3.org/2000/09/xmldsig#base64"]
if tr.algorithm == "http://www.w3.org/2000/09/xmldsig#base64":
pass
elif tr.algorithm == "http://www.w3.org/TR/1999/REC-xpath-19991116":
assert len(tr.x_path) == 1
xp = tr.x_path[0]
assert xp.text.strip() == """self::text()[parent::rep:CipherValue[@Id="example1"]]"""
data6 = """<ReferenceList xmlns="http://www.w3.org/2001/04/xmlenc#">
<DataReference URI="#invoice34">
<ds:Transforms xmlns:ds='http://www.w3.org/2000/09/xmldsig#'>
<ds:Transform Algorithm="http://www.w3.org/TR/1999/REC-xpath-19991116">
<ds:XPath xmlns:xenc="http://www.w3.org/2001/04/xmlenc#">
self::xenc:EncryptedData[@Id="example1"]
</ds:XPath>
</ds:Transform>
</ds:Transforms>
</DataReference>
</ReferenceList>"""
def test_6():
rl = xenc.reference_list_from_string(data6)
assert rl
print(rl)
assert len(rl.data_reference) == 1
dr = rl.data_reference[0]
assert dr.uri == "#invoice34"
assert len(dr.extension_elements) == 1
ee = dr.extension_elements[0]
assert ee.tag == "Transforms"
assert ee.namespace == "http://www.w3.org/2000/09/xmldsig#"
trs = saml2.extension_element_to_element(ee, xmldsig.ELEMENT_FROM_STRING, namespace=xmldsig.NAMESPACE)
assert trs
assert len(trs.transform) == 1
tr = trs.transform[0]
assert tr.algorithm == "http://www.w3.org/TR/1999/REC-xpath-19991116"
assert len(tr.x_path) == 1
assert tr.x_path[0].text.strip() == """self::xenc:EncryptedData[@Id="example1"]"""
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